The Jotron AQ-4-MKII Multi-Purpose Strobe Light is a high quality multi-purpose marking and distress personal strobe light that is designed for use in extreme maritime and on-shore environments. The Jotron AQ-4-MKII Multi-Purpose Strobe Light was developed with a high intensity LED that can be uses as either flash or fixed light that is activate by a two-way switch. The Jotron AQ-4-MKII Multi-Purpose Strobe Light is water-proof down to 300 meters.